“The fledgling NoSQL marketplace is going through a rapid transition – from the predominantly community-driven platform development to a more mature application-driven market. Scaling up web infrastructure on NoSQL basis have proven successful for Facebook, Digg and Twitter. Successful attempts have been made to develop NoSQL applications in the biotechnology, defense and image/signal processing. Interest in using key-value pair (KVP) technology has reemerged to the point where the traditional RDMS vendors evaluate strategy of developing in-house NoSQL solutions and integrating them in current product offers. It will not take long before we’ll see acquisitions driven by emerging NoSQL technology.”https://www.marketresearchmedia.com/?p=568

Key value concept: “A key-value database, or key-value store, is a data storage paradigm designed for storing, retrieving, and managing associative arrays, a data structure more commonly known today as a dictionary or hash table.”
Source: https://en.wikipedia.org/wiki/Key-value_database